Creating the delicious Three-Cheese Pasta Bake can be a breeze if you follow these steps:

1. Preheat the Oven: Preheat your oven to 375°F (190°C).
2. Cook the Pasta: In a large pot of salted boiling water, cook the pasta until al dente. Drain and set aside.
3. Mix the Cheese: In a large bowl, combine the ricotta cheese, ½ cup of mozzarella, and ½ cup of Parmesan cheese. Add Italian seasoning, garlic powder, salt, and pepper. Mix well.
4. Combine Pasta and Sauce: In another bowl, combine the cooked pasta with the marinara sauce and mix thoroughly.
5. Layer the Ingredients: In a baking dish, spread half of the pasta mixture. Top with half of the cheese mixture. Repeat the layers with the remaining pasta and cheese mixtures.
6. Add Remaining Cheese: Sprinkle the remaining mozzarella and Parmesan cheese on top.
7. Bake: Cover the dish with aluminum foil and bake for 25 minutes. Remove the foil and bake for an additional 10-15 minutes, or until the cheese is golden and bubbly.
8. Garnish and Serve: Once baked, let it cool for a few minutes. Garnish with fresh basil leaves if desired.

These steps will guide you in creating an incredible Three-Cheese Pasta Bake that is sure to delight your family and friends!